atrosinenko wrote: @kovdan01 Thank you for the reproducer!
I restored the original check `TI->readsRegister(AArch64::X16, TRI) ? AArch64::X17 : AArch64::X16` when computing the scratch register, as checking just the specific operand did not handle the `AUTH_TCRETURN*` pseudos which actually have two register operands. Additionally, the register class of the second register operand of these pseudo instructions was restricted, as it seems to be just a coincidence that at least one scratch register was available for authenticated tail calls. https://github.com/llvm/llvm-project/pull/110705 _______________________________________________ llvm-branch-commits mailing list llvm-branch-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-branch-commits
